39012900 has 36 divisors (see below), whose sum is σ = 112878192. Its totient is φ = 10403360.

The previous prime is 39012893. The next prime is 39012907. The reversal of 39012900 is 921093.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (39012893) and next prime (39012907).

It is not an unprimeable number, because it can be changed into a prime (39012907) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64722 + ... + 65321.

Almost surely, 2^39012900 is an apocalyptic number.

39012900 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39012900 is an abundant number, since it is smaller than the sum of its proper divisors (73865292).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39012900 is a wasteful number, since it uses less digits than its factorization.

39012900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130060 (or 130053 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 24.

The square root of 39012900 is about 6246.0307395977. The cubic root of 39012900 is about 339.1585304597.

Adding to 39012900 its reverse (921093), we get a palindrome (39933993).

The spelling of 39012900 in words is "thirty-nine million, twelve thousand, nine hundred".